Tod Lubitch is born with a deficient immune system. As such, he must spend the rest of his life in a completely sterile environment. His room is completely hermetically sealed against bacteria and virus, his food is specially prepared, and his only human contact comes in the form of gloved hands. The movie follows his life into a teenager.

Set in puritanical Boston in the mid 1600s, the story of seamstress Hester Prynne, who is outcast after she becomes pregnant by a respected reverend. She refuses to divulge the name of the father, is "convicted" of adultery and forced to wear a scarlet "A" until an Indian attack unites the Puritans and leads to a reevaluation of their laws and morals.

Zack Mayo is an aloof, taciturn man who aspires to be a navy pilot. Once he arrives at training camp for his 13-week officer's course, Mayo runs afoul of abrasive, no-nonsense drill Sergeant Emil Foley. Mayo is an excellent cadet, but a little cold around the heart, so Foley rides him mercilessly, sensing that the young man would be prime officer material if he weren't so self-involved. Zack's affair with a working girl is likewise compromised by his unwillingness to give of himself.